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  1. 13th July 2013, 09:54 PM #1
    dubdzine
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    Default HELP: PNP proximity sensors - G540 - Huanyang VFD

    Hello all,
    I am having some difficulties installing my PNP proximity sensors to my Gecko G540.
    I have created this diagram of my wiring to better communicate my problems:
    PNP to G540 to VFD.jpg

    Port & Pins.jpg

    2) I still have to hit the RUN button to get the spindle to spin. I cannot get Mach 3 to be "the source of Run commands". I have a 48V 30A SPST relay in between pin 5 on G540 and DCM/FOR on the VFD.

    3) The spindle doesn't stop when I enter M5 in Mach3. The spindle keeps spinning at 6600 rpm. The spindle spins at 24600 rpm when enter M3 S24000 in Mach3.

    4) I am looking to change PD142 to 13.6A since the VFD is 110V but it maxes out at 7A.

    My VFD parameters for my 1.5KW 110V water cooled chinese spindle:
    PD001 Source of Run Commands: 0
    PD002 Source of operating Frequency: 2
    PD005 Max operating frequency: 400hz
    PD004 base frequency: 400hz
    PD003 Main frequency: 400hz
    PD006 Intermediate frequency: 2.5
    PD008 max voltage: 110v
    PD009 Intermediate voltage: 15v
    PD010 Min voltage: 8
    PD011 frequency lower limit: 100hz
    PD023 Reverse: 1
    PD027 starting frequency: 3
    PD028 stopping frequency: 3
    PD070 set control to 0-5V: 0
    PD141 rated motor voltage: 110V
    PD142 rated motor current: 7 Amps (should be 13.6A @ 110V)
    PD143 motor pole number: 2
    PD144 rated motor revolution: 3000 (should this be 24000rpm)

    Here is the little beast
    IMG_4075.jpg


    Let me know what I am doing wrong. Thanks

    Marc
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  3. 14th July 2013, 12:37 AM #2
    RayG's Avatar
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    Hi Marc,

    If you want to start the VFD via an external input terminal, you need to set PD001 to 1.. when set to 0 it starts/stops only from the front panel buttons.

    Also PNP sensors are active high, I notice you've selected active low, is that what you wanted?

    Regards
    Ray
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  4. 14th July 2013, 12:30 PM #3
    dubdzine
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    Ray,
    I have tried to to set the PD001 to 1 but Mach 3 was not able to turn the VFD on (run). The SPST relay does switch tho. I have also manually connected DCM and COM, still nothing.

    I have selected both active low and high but it didn't help. It was advised by john_100 to add a transistor and 2 resistors to convert the sensors outputs to NPN.


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  5. 14th July 2013, 12:32 PM #4
    dubdzine
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    Ray,
    I have tried to set PD001 to 1
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  6. 14th July 2013, 02:02 PM #5
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    Hi Marc,

    Hmmm just try to eliminate one thing at a time, Disconnect the Gecko.

    Set PD001 to 1 and connect a switch between DCM and FOR inputs on the drive.. does the drive run when the switch closes?

    Regards
    Ray
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  7. 14th July 2013, 02:10 PM #6
    dubdzine
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    Ray,
    The VFD doesn't start when connecting DCM and FOR after PD001 was set to 1

    Marc
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  8. 14th July 2013, 04:33 PM #7
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    warrick
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    Quote Originally Posted by dubdzine View Post

    2) I still have to hit the RUN button to get the spindle to spin. I cannot get Mach 3 to be "the source of Run commands". I have a 48V 30A SPST relay in between pin 5 on G540 and DCM/FOR on the VFD.
    So where is the 48v to drive the relay ?

    Warrick
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  9. 14th July 2013, 04:35 PM #8
    dubdzine
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    It should be 48V not 24V. I need to correct the diagram.
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  10. 15th July 2013, 03:12 AM #9
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    Quote Originally Posted by dubdzine View Post
    Ray,
    The VFD doesn't start when connecting DCM and FOR after PD001 was set to 1

    Marc
    Hi Marc,

    The function of that input pin ( FOR ) is controlled by PD044, what value is in there at present?

    Regards
    Ray

    PS... I notice that you've selected comms as the source of the operating frequency ( PD002=2 ) but you've wired it up for analog input frequency control? Shouldn't PD002 be set to 1?
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  11. 15th July 2013, 03:17 AM #10
    dubdzine
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    Pd044 is set at 2 (for rotation)
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  12. 15th July 2013, 03:21 AM #11
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    Quote Originally Posted by dubdzine View Post
    Pd044 is set at 2 (for rotation)
    Ok, that's the default setting, which should be fine. Can you measure the voltage at that pin ( relative to digital common DCM ) it should go to zero when the switch closes.

    Regards
    Ray
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  13. 15th July 2013, 03:24 AM #12
    dubdzine
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    The voltage between CDM and FOR is 0V
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  14. 15th July 2013, 03:25 AM #13
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    Quote Originally Posted by dubdzine View Post
    The voltage between CDMA and FOR is 0V
    That's with the switch closed, when the switch is open it should go to 24V

    Regards
    Ray
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  15. 15th July 2013, 03:33 AM #14
    dubdzine
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    Quote Originally Posted by RayG View Post
    That's with the switch closed, when the switch is open it should go to 24V

    Regards
    Ray
    When measuring on the VFD pins (DCM and FOR), there was no voltage when the relay was open or closed.

    The power supply to the G540 and relay is 48V.
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  16. 15th July 2013, 03:43 AM #15
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    Quote Originally Posted by dubdzine View Post
    When measuring on the VFD pins (DCM and FOR), there was no voltage when the relay was open or closed.

    The power supply to the G540 and relay is 48V.
    Hi Marc,

    The VFD inputs are all active low ( current sinking ) and are pulled up to 24V DC inside the drive, so if the drive is powered and you measure an unconnected input as zero volts, then the only conclusion is that the internal 24V supply inside the drive has failed or is shorted out somewhere....

    Regards
    Ray
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